System and method for displaying content on a television in standby mode

ABSTRACT

The present invention relates to a system for displaying content on a television in standby mode, comprising a storage for storing face data of one or more users and for storing preference data associated to the face data, said preference data indicating preferences of the user, a display for displaying content, a standby indicator for indicating that the television is in standby mode, wherein in case that the television is in standby mode activating a front camera for capturing an image of a user, and activating a recommendation device for searching the attribute data of content currently available and for selecting in case that the captured image corresponds to one of the store face data at least one content to be displayed having attribute data matching the associated stored preference data. 
     The present invention further relates to a method for displaying content on a television in standby mode.

The present invention relates to a system and a method for displayingcontent on a television in standby mode. More specifically, the presentinvention relates to a system and method making use of a television evenin standby mode.

In recent times televisions become more sophisticated and of increasingfunctionality.

Additionally, televisions become more and more integrated into hi-finetworks or other types of networks having different sources at theirdisposal. During watching a television program, the functionality of thetelevision can be fully used and enjoyed. On the other hand, when notelevision program is watched and the television is in standby mode orturned off, the television is not used anymore even though it mightprovide a variety of functions.

It is therefore the objective problem of the present invention toimprove the prior art. Specifically, it is an object of the presentinvention to provide a system and a method which allow to displaycontent on a television even in standby mode and adapted to thepreferences of a user.

The present invention according to a first aspect relates to a systemfor displaying content on a television in standby mode, comprising astorage for storing face data of one or more users and for storingpreference data associated to the face data, said preference dataindicating preferences of the user, a display for displaying content, astandby indicator for indicating that the television is in standby mode,wherein in case that the television is in standby mode activating afront camera for capturing an image of a user, and activating arecommendation device for searching the attribute data of contentcurrently available and for selecting in case that the captured imagecorresponds to one of the store face data at least one content to bedisplayed having attribute data matching the associated storedpreference data.

The present invention according to a further aspect relates to a methodfor displaying content on a television in standby mode, comprising thesteps of storing face data of one or more users and for storingpreference data associated to the face data, said preference dataindicating preferences of the user, displaying content, indicating thatthe television is in standby mode, wherein in case that the televisionis in standby mode activating a front camera for capturing an image of auser, and activating a recommendation device for searching the attributedata of content currently available and for selecting in case that thecaptured image corresponds to one of the store face data at least onecontent to be displayed having attribute data matching the associatedstored preference data.

Advantageous features and embodiments are the subject matter of thedependent claims.

The present invention will now be explained in more detail in thefollowing description of preferred embodiments in relation to theenclosed drawings in which

FIG. 1 shows a system for displaying content on a television in standbymode according to the present invention,

FIGS. 2 and 3 show embodiments of data stored in the storage accordingto the present invention, and

FIGS. 4 to 10 show flow charts with the process steps according to themethod of the present invention.

FIG. 1 shows a system 100 for displaying content on a television instandby mode according to the present invention. The components shown inFIG. 1 can be all or partly integrated into a television. If only a partof the components is integrated into a television, then the othercomponents can be integrated into one or more external components ordevices which are connected to and in data communication with thetelevision. In the following description, the embodiment is describedthat all components are integrated into a television; however, asmentioned above, the present invention is not limited to such anembodiment.

The system 100 as shown in FIG. 1 of course comprises all furtherfeatures necessary enabling the functionality, such as a power source orthe like, which are omitted in the figures for the sake of clarity.

The system 100 comprises a storage 101. The storage 101 can be dividedinto one or more storage parts being volatile and/or non-volatile memoryparts.

The system 100 further comprises a front camera 102 which is adapted totake pictures or images from an object in the environment of the system100, specifically from objects in the front of the system 100. The term“front” hereby is intended to refer to those parts of the environmentfrom which the display of the television can be seen. The front camera102 can be adapted to take still images and/or video. In one embodimentthe front camera 102 is movable, i. e. turnable in order to also takepictures or images from objects which are not in the front of the system100.

The front camera 102 is connected to and in data communication with aface recognition device 103. The face recognition device 103 is adaptedto carry out a face recognition based on images submitted by the frontcamera 102. The face recognition is hereby carried out according toknown methods, for example the algorithms according to Viewdle or UIUC.But also any other present or future face recognition algorithm can beused.

The system 100 further comprises a display 109 for displaying videocontent or image content. The display 109 can be any type of known orfuture display devices, for example liquid crystal display panels (LCD),thin-film transistor displays (TFT), color-sequential displays, plasmadisplay panels (PDP), digital micro-mirror devices or organic lightemitting diode (OLED) displays or any other type of display. Connectedto the display is a graphics engine 106 which controls the display 109.

The system 100 further comprises a decoder 107 for receiving televisionprograms which are broadcast. The term “television program” is intendedto encompass all types of video content, which are displayable on adisplay, panel or monitor. A digital tuner 108 within the system 100 isadapted to select a frequency in order to show a specific televisionprogram and therefore also a channel control 105 is adapted to controlthe digital tuner 108 in order to select the channel to be displayed onthe display 109 and to change the frequency of the digital tuner 108.

The system 100 optionally comprises a back camera 111, which is like thefront camera 102 adapted to take pictures or images either in the formof a single image or video. The back camera 111 hereby covers theenvironment of the system 100 which is not covered by the front camera102, i. e. the back camera can take images of objects within parts ofthe environment from which the display cannot be seen. Specifically, ifthe system is placed near a wall, then the back camera 111 is adapted totake a picture of the wall.

However, FIG. 1 is only an exemplary embodiment of a system according tothe present invention, but the present invention is not limited to theshown components and structure, but can be adapted to any othertelevision enabling a reception of television programs from an arbitrarysource and enabling the display of the television programs.

The system 100 further comprises an image processing device 110 which isadapted to process images and/or video received either from the frontcamera 102, from the back camera 111 or stored in the storage 101. Imageprocessing can comprise changing the size, changing the resolution,changing the color, sharpen, turn, invert or any other type of imageprocessing.

The system 100 additionally comprises a standby indicator 112 indicatingwhether the television, into which the system 100 is integrated or towhich the system 100 is connected, is in standby mode. That means thestandby indicator 112 indicates whether the television is currently usedfor watching television programs or whether the television is currentlyswitched off or put into standby mode. The standby indicator 112 caneither automatically indicate a standby in case that the watching oftelevision programs is ended by a user or the standby indicator can betriggered by a corresponding function or key, for example the power key,which has to be pressed or activated by the user. That means that thestandby indicator 112 either automatically based on predefined conditionindicates a standby or that the standby indicator 112 based on manualactions accomplished by the user indicates a standby.

The system 100 additionally comprises a recommendation device 104 forselecting content stored in the storage 110 and/or for selecting contentfrom any other source, e.

g. the front camera 102, the back camera 111 or any other sourceconnected to the system 100 to be displayed on the display 109. Theselection process will be explained in detail in the following.

The term “content” when used in the present specification is intended torefer to any type of data or information comprising displayable parts.That means that the content can either consist of displayable data orinformation or the content can comprise displayable data or information.Content can for example comprise text, images, video or any other typeof displayable data. The content additionally can also comprise sounddata, which can be played by a corresponding speaker or the like,attached to the system 100. The content can also comprise further dataor information functioning as instruction for further devices in orderto enable not only a displaying of the content but in order to enablealso the activation of further devices such as sound, light and so on.

According to the present invention in the storage 101 face data of oneor more users are stored and additionally preference data of the one ormore users are stored and associated with the stored face data.

The preference data comprises information on preferences, habits and/orkey words indicating preferences of the user with respect to content.The preference data can hereby have been input manually by a user and/orretrieved automatically by the system. The system can for examplemonitor the habits of a user when watching television programs andtherefrom extract preference data of the user.

If the user stops watching television then either automatically ormanually the standby indicator 112 will indicate the standby mode of thetelevision.

Then the following process is activated. The front camera 102 capturesan image of the user. The face recognition device 103 then accomplishesa face recognition of the face within the image captured by the frontcamera 102.

The recognized face is transmitted to the recommendation device 104,which compares the recognized face with face data stored in the storage101. Alternatively, the comparison step can also be carried out by theface recognition device 103. If the captured face data correspond toface data stored in the storage 101, then the recommendation device 104will select a content out of all contents currently available whoseattributes matches the preference data stored with the correspondingface data.

More specifically, the recommendation device 104 receives a list of allcontents currently available either from the storage 101, from the frontcamera 102, from the back camera 111, via an external device which isconnected to the system 100, via the interne, via the decoder 107 or viaany other available source. Usually, content has associated thereto metadata and/or other additional data indicating attributes of the content.Otherwise, the recommendation device 104 can be adapted to analyze thecontent in order to retrieve attributes of the content.

The recommendation device 104 compares the attributes of the availablecontent with the preference data stored and associated to the storedface data and selects the content for displaying on the display 109having attribute data matching the preference data of the user.

An example of data stored in the storage 101 is shown in FIGS. 2 and 3.

In FIG. 2 and example of a user entry 200 is shown. The user entry inthe present embodiment comprises a user identification, i. e. a user ID201, which uniquely identifies a user. A user ID 201 can be anycombination of symbols and/or icons uniquely identifying a user. Theuser entry 200 further comprises face data 202 of the correspondinguser. The face data can either be a stored image and/or a set of dataindicating important features within the face of a user in order toenable a proper match between the stored face data 202 and those facedata which are transmitted by the face recognition device 103. However,in an alternative embodiment, the user ID 201 can also be omitted.

Together with the face data 202 preference data are stored indicatingpreferences of the corresponding user. According to a preferredembodiment of the present invention in the user entry 200 source data203 are stored indicating a preferred source for contents to bedisplayed. The source data 203 can for example indicate the storage 101as source, the back camera 111 as source, the front camera 102 and/orany other type of source, e.g. the internet, an external device or thelike. Additionally, the source data 203 may indicate a specific group ofcontents stored within the storage 101 or available via any othersource.

In the user entry 200 in a preferred embodiment favorite key words 204are stored indicating key words for which the recommendation device 104should search within the available content in order to retrieve contentthat is preferred by the user.

The user entry 200 in any case at least has to comprise face data 202and preference data, which in the present example is represented assource data 203 and favorite key words 204, but also any other type ofpreference data can be stored, for example date and time, gender, age,personal settings or any other type of preference data.

FIG. 3 shows an example of attribute data 300 associated to content,which can comprise or consist of metadata. In case that the content is apicture, the attribute data 300 can for example comprise a picture ID301 uniquely identifying the picture. Comprised within the attributedata 300 can be further a title 302, e.g. “football game”, key words 303indicating important features or attributes of the content, e.g.“football” or “green”, the time and date 304 of creation of the contentor of change of the content and location data 305 indicating thelocation from which the content can be retrieved, i.e. the storage 101,the front camera 102, the internet or the like. Of course the presentinvention is not limited to the shown attribute data 300 but cancomprise any other type of attribute data 300 including metadataindicating features of the content. Additionally or alternatively theimage processing device 110 can analyze the content itself in order toretrieve attribute data of the content. For example, if the content hasmany green pixels within the image, then the image processing device 110can add “green” to the keywords 303.

According to a preferred embodiment, the user entry 200 is created onceby the user. The user triggers the front camera 102 to take a picture ofhis face in order to store the face data 202 within the user entry 200in the storage 101. The user ID 201 is either created automatically bythe system 100 or the user might have selected his own user ID 201, e.g.his name, a nickname, a symbol, a combination thereof or the like. Whencreating the user entry 200 the user preferably also chooses one or moresources, from which the content to be displayed should be retrieved andthe users' selection is stored as source data 203. The source data 203can also comprise an indication, which function should be used, i.e.whether a wall function, a mirror function or a picture function shouldbe, which will be explained in detail later on. The user can furtherinput several keywords, e.g. “football”, “classic music” and they arestored as favourite keywords 204 in the user entry 200 in the storage101.

The user can further have stored attribute data 300 of content. Hereby,the content itself can be stored in the storage 101 together with theattribute data 300 or only the attribute data 300 can be stored, wherebythe location data 305 indicate the location of the content, e.g. thefile path on the storage 101.

As previously explained, the television might have a connection to theinternet and thereby content can also be retrieved from the internettogether with their attribute data. For example the system 100 can getcontent together with metadata by parsing the content metadata orrelated documents like HTML, or by analyzing the content by acorresponding image processing carried out by the image processingdevice 110. In this case, the location data 305 may be the URL of thecontent if the content is not stored in the storage 101.

In other words, with the present invention a system and a method isprovided which allow to use the sophisticated system of a televisioneven when the television is in standby mode. In order to ensure that theshown contents are really personalized to the user who is currentlypresent, a picture of the user is taken and compared with face datastored in the storage in order to select contents appropriate for theuser based on the stored preference data.

In an alternative embodiment also groups of users can be stored. Forexample the face data of two users are stored and treated as one groupassociated with preference data. Such a group can comprise people livingtogether in the same household, such as wife and husband or family. Thefront camera 102 in this case is adapted to capture an image of allusers in the vicinity of the system 100, to transmit the data to theface recognition device 103, which in turn recognizes the number offaces and can accomplish a face recognition on each of the faces.

Alternatively or additionally, the face recognition 103 in case that thefront camera 102 captures an image comprising several faces and afterhaving recognized two or more faces, can choose only one of them, forexample by measuring the face size within the picture and choosing theface which appears as largest face within the image or the like.

In the following the steps carried out according to the method of thepresent invention will be explained in detail with reference to FIGS. 5to 10.

FIG. 4 shows an initial phase of the process. The process starts in stepS0. In step S1 the displaying of television programs is ended. Thatmeans that in step S1 triggered either automatically or manually thestandby indicator 112 indicates the standby of the television. Asalready explained, the user can press for example the power key of anintelligent television system 100 when the user finished watching atelevision program. The display 109 will then stop displaying atelevision program.

In case of a standby then the components of the system 100 are activatedand the following steps are carried out. In step S2 the front camera 102captures a picture of the room and thereby captures a picture of the oneor more users being in the vicinity of the system 100. The capturedpictures then transmitted to the face recognition device 130 which inthe following step S3 recognizes one or more user faces.

As previously described either one of the recognized faces is selectedor a part or all faces are treated as a corresponding group. Therecognized face is then transmitted to the recommendation device 104which in the following step S4 compares the recognized face with theface data 202 stored in the storage 101. Alternatively, the comparisoncan also be carried out by the fact recognition device 103, which thentransmits the comparison result to the recommendation device 104.

In the following step S5 the recommendation device 104 checks whether amatch has been found between the recognized face data captured by thefront camera 102 and the face data 202 stored in the storage 101, i.e.whether the same or a similar face was found within the face data 202stored in the storage 101. In case that a match is found, then theprocess continues at point A, which will be described later. Otherwise,if in step S5 it is decided by the recommendation device 104 that nomatch has been found, then the process continues at point B, which willalso be described later.

The process starting from point B will now be described with referenceto FIG. 5.

In step S10 the recommendation device 104 or the face recognition device103 indicates that no match was found between the face in the imagecaptured by the front camera 102 and the face data 202 stored in thestorage 101. If the face recognition device 103 carried out thematching, then the case of no found match might be indicated to therecommendation device 104 by sending a special user ID to therecommendation device 104 indicating “no user”.

That means that currently a user is present whose face is not yet storedas face data in the storage. In the preferred embodiment of the presentinvention it is assumed that all users who frequently use the televisionhave already stored their face data in the storage 101. If therefore theface of a user cannot be found in the storage 101, he may be a guest orvisitor or the like. In order to nevertheless use the television systemand to display content which could be adapted to the preferences of theuser, whose face data are not stored, in step S11 the recommendationdevice 104 compares the recognized face captured by the front camera 102with faces which appear within pictures, video or other types ofcontents stored within the storage 101. This bases on the assumptionthat if a user presently is a guest or a visitor, then there might be arelationship between the guest and the regular user, so that there mightbe the probability that pictures or videos are present within thestorage which show the user who is currently the guest or visitor.

If more than one face was recognized in the captured image by the facerecognition device 103, then it is also possible that the recommendationdevices 104 searches for pictures and/or videos within the storagecomprising some or all of the recognized faces.

If in step S12 it is decided that a match was found then in thefollowing step S13 the found one or more contens are displayed on thedisplay 109. If in step S12 it is decided that no match was found, thenin the following step S14 the standard settings can be used. Thestandard settings can hereby be that no content is displayed at all,that content is randomly selected and displayed or any other type ofsetting can be used.

The process then in any case continues with point C.

The process starting from point A will now be explained with referenceto FIG. 6. This happens in the case that a match is found between theface within the image captured by the front camera 102 and the face data202 stored within the storage. The comparison process can be carried outby the recommendation device 104 or by the face recognition device 103.In the latter case, the face recognition device can send thecorresponding user ID 201 associated to the found face data 202 to therecommendation device 104.

In the following step S20 the recommendation device 104 retrieves theface data and optionally the user ID from the storage 101. In the nextstep S21 the settings or preference data associated to the stored facedata 202 are retrieved. The process then depending on the settings, e.g. dependent on the source data 203, continues with different functions.Otherwise, if no source data 203 are present or if no other settingsindicate which function should be used, then either automatically one ofthe functions can be used or one of the functions can be randomlyselected.

The process then depending on the selected function continues with amirror function in step S22, a picture function in step S23 or a wallfunction in step S24. The different functions will be explained indetail later on.

In any case the process then continues with step S25 where it is checkedwhether additional sound, i. e. sound or other features in addition todisplaying the content on the display 109 is provided. If this is thecase, then in step S26 the sound source is selected. Hereby, the contentcan either comprise associated metadata already indicating a specificsound, sound source or the like or otherwise a sound source can beselected depending on other parameters. For example the recommendationdevice 104 can analyze the attribute data 300 of the content or thecontent itself in order to find an appropriate type of sound. If forexample one of the key words is “tree” or if the recommendation device204 analyzes the content and finds that there is nature or trees within,then as sound a quiet and slow type of sound may be selected.

In the next step S27 the sound is played in addition to the contentdisplayed on the display 109. As previously described, the content canalso comprise other attribute data 300 comprising instructions for otherdevices. In the above example, when a content comprising nature isdisplayed and a corresponding quiet sound is selected, then with theadditional instructions the lights may be dimmed in order to create arelaxing atmosphere.

Otherwise if in step S25 it is decided that no additional sound or othertypes of instructions to external devices is provided, then the processcontinues with point C.

Also after having played the sound or after having activated otherdevices in step S27 the process continues with point C.

With reference to FIG. 7 now the mirror function of step S22 will beexplained in detail. If the mirror function is selected, then in stepS30 an image or a video is captured with the front camera 102. In thefollowing step S31 the image processing device 110 inverts the capturedimage or video, i. e. turns it around a vertical axis.

In the next step S32 the inverted image or video is displayed on thedisplay 109, thereby having a sort of mirror function, i. e. in thiscase on the display 109 an image or video is displayed representing amirror of the environment in front of the front camera 102. Thetelevision can thereby be used as mirror.

With reference to FIG. 8 now the process steps are explained in casethat the picture function is selected in step S23.

In step S40 the settings for the picture function are retrieved. Thesecan be either settings stored within the preference data within the userentry 200 or can be settings stored in any other part of the storage101. That means that the settings can comprise preference dataassociated to specific face data 202 and/or can be general settingsapplicable to more than one or all user entries 200. The settingsindicate which type of search conditions should be used in order toselect content to be displayed. Depending on the settings one or more ofthe following possible information is retrieved in order to find contentmatching the preferences of the user.

In step S41 key words 204 associated to the face data 202 and storedwithin the storage can be retrieved. These key words can be used inorder to search the attribute data 300 of content in order to findcontent matching the preferences of a user.

Alternatively or additionally, in step S42 the color of the clothes theuser is currently wearing is detected from the previously capturedimage, i. e. the image captured by the front camera 102. This color canbe also used in order to find content which matches the actual mood andsituation of the user. If the user for example is carrying greenclothes, then content related to nature or to green pictures can beselected by a corresponding analysis carried out by the image processingdevice 110 and/or the attribute data 300 can be searched for the keyword“green”.

Alternatively or additionally, in step S43 the current data and/or timecan be retrieved and this information can also be used in order to findcontent to be displayed which matches the present situation. Forexample, if the current time is 3 pm on April 1^(st), then therecommendation device 104 may select images and/or videos which werecreated and/or changed around 3 pm on an April 1^(st).

Using either a part or all of the previous described conditions, in stepS44 the available content is searched, for example all pictures storedwithin the storage 101 are searched for the previously determinedfeatures. Alternatively or additionally, also all other sourcesproviding displayable content can be searched. Even though the functionis referred to as “picture function” this function includes thedisplaying of still images as well as videos.

It can be determined that only pictures and/or videos are selected whichmatch all of the previously determined features or otherwise a sort ofpriority can be set for the different features so that also picturesand/or videos which do not match all of the features are selected.

In the following step S45 it is checked whether a match has been found.If no match is found then in the following step S46 again standardsettings can be used. Otherwise, if in step S45 a match was found, thenin step S47 it is checked whether more than one picture and/or videomatching the conditions has been found. If this is not the case then instep S48 the single found picture or video is displayed on the display109. The process of step S23 then ends.

Otherwise, if in step S47 it is decided that more than one pictureand/or video has been found, then in step S49 the found pictures and/orvideos are displayed as a slide show, for example by changing thedisplay every 30 seconds. In any case then step S23 ends.

With respect to FIG. 9 in the following the process steps are describedwhen the wall function in step S24 is selected.

In step S50 it is checked whether a back camera 111 is present. If aback camera is present then in the following step S51 the back camera111 will take a wall picture of the wall behind the television and thenthe wall picture will be displayed in step S57 on the display 109. Thecolor of the wall picture can be adjusted dependent on the condition ofthe environment, e.g. if the room is dark, the wall picture is madedarker by changing colors.

Otherwise, if in step S50 it is decided that no back camera 111 ispresent, then in the following step S52 it is checked whether the frontcamera 102 is turnable.

If this is the case then in step S53 the front camera 102 is turnedbackwards to the wall and in step S54 a wall picture is taken with theturned front camera 102. The taken wall picture is then also displayedon the display 109 in step S57.

Otherwise, if in step S52 it is decided that the front camera 102 is notturnable, then in the following step S55 it is checked whether a wallpicture is stored in the storage 101. If this is the case then in stepS56 the stored wall picture will be retrieved from the storage 101 anddisplayed on the display 109 in step S57.

In any case it is possible to add an additional step in which the imageprocessing device 110 modifies the captured or stored wall picturebefore it is displayed. The image processing device 110 can for examplechange the wall picture based on the current brightness and/or color ofthe environment or room.

Otherwise, if in step S55 it is decided that no wall picture is storedin the storage 101, then this means that no wall picture at all can bemade available and then in the following step S58 the standard settingsare used.

The wall function then ends in step S24.

With the wall function the impression can be created that the televisionis not present at all. This might be of advantage if the television isvery large and when switched off seems to take much clearance within theroom. In this way it can be created the impression that the televisionis not present and the room is larger. Further, the user does not haveto pay any attention to the television.

Independent of the selected function, the recommendation device 104 canalternatively of additionally show text and/or information on thedisplay 109. For example, information about the present, past or futuretelevision programs matching the user preference can be shown, e.g.title, time and date.

With reference to FIG. 10 now the process starting from point C will beexplained.

In step S60 the system 100 checks whether a switch-off instruction hasbeen received.

For example the standby indicator 112 indicates that the standby periodis over or the complete system of the television is completely turnedoff, e. g. the power source is stopped. If a switch-off instruction wasreceived then the process ends in step S61. Of course the step ofchecking whether a switch-off instruction was received can also beaccomplished at any other time during the whole process and only for thesake of completeness is shown in the figures.

If no switch-off instruction was received, then in the following stepS62 a picture is again captured with the front camera 102. In the nextstep S63 it is checked whether a user is present. If in step S63 it isfound that no user is present anymore then the process ends in step S61and the system 100 is switched off or the corresponding components areat least deactivated in order to avoid unnecessary power consumption.

Otherwise, if in step S63 it is found that at least one user is presentthen in the next step S64 it is checked from the image analysis whethera new user is present, i.e. another user than the one for which thecontent currently displayed is selected. If this is not the case then instep S65 the display function continues. Otherwise, in the followingstep S66 it is checked whether the previous user is also still present.If this is the case then the presence of the new user is ignored and thedisplaying continues in step S65.

Otherwise, if in step S66 it is found that the previous user is notpresent anymore, then the process in step S67 switches again to theprocess starting from step S3.

The present invention is not limited to the described embodiments.Rather, all features, components and/or steps described herein withreference to one embodiment can also be incorporated into any otherembodiment where appropriate.

With the present invention the television can continue to showinteresting and attractive multimedia contents even after a user hasterminated watching television programs. Further, with therecommendation of contents based on stored user preferences and theautomatic detection of a user, content to be displayed can be selectedduring the standby mode which perfectly suits the preferences of theuser who is currently present.

1. System for displaying content on a television in standby mode, comprising a storage for storing face data of one or more users and for storing preference data associated to the face data, said preference data indicating preferences of the user, a display for displaying content, a standby indicator for indicating that the television is in standby mode, wherein in case that the television is in standby mode activating a front camera for capturing an image of a user, and activating a recommendation device for searching the attribute data of content currently available and for selecting in case that the captured image corresponds to one of the store face data at least one content to be displayed having attribute data matching the associated stored preference data.
 2. System according to claim 1, wherein said attribute data describe features of the content and preferably comprise metadata of said content.
 3. System according to claim 1, wherein said attribute data comprise a content ID, a title, at least one keyword, a time and/or date indicating creation or change of content and location data indicating the location from which the content can be retrieved.
 4. System according to claim 1, wherein said preference data comprise source data indicating a favorite source from which the content should be retrieved and/or for indicating a type of content to be displayed and favorite keywords.
 5. Television comprising a system according to any of the preceding claims.
 6. Method for displaying content on a television in standby mode, comprising the steps of storing face data of one or more users and for storing preference data associated to the face data, said preference data indicating preferences of the user, displaying content, indicating that the television is in standby mode, wherein in case that the television is in standby mode activating a front camera for capturing an image of a user, and activating a recommendation device for searching the attribute data of content currently available and for selecting in case that the captured image corresponds to one of the store face data at least one content to be displayed having attribute data matching the associated stored preference data.
 7. Method according to claim 6, comprising the steps of capturing and image of the environment of the system, inverting the captured image and displaying the inverted image on the display thereby displaying a mirror of the environment.
 8. Method according to claim 6, comprising the steps of retrieving a picture of the wall next to the system and displaying the retrieved image on the display.
 9. Method according to claim 8, wherein the step of retrieving includes retrieving a stored wall image from the storage or capturing an image from the wall by a back camera or by turning the front camera.
 10. Method according to claim 6, comprising the steps of selecting content to be displayed based on favorite keywords within the preference data, based on the color of the clothes of the user and/or based on the actual date and/or time.
 11. Method according to claim 6, comprising the step of sequentially displaying two or more contents matching the preference data.
 12. Method according to claim 6, comprising the step of after predefined time intervals capturing an image of the environment of the system and checking whether a new user is present.
 13. Method according to claim 12, comprising the step of changing the displayed content dependent on the preference data of the new user if the previous user is not present anymore.
 14. Method according to claim 6, comprising the step of additionally selecting sound to be played depending on the preference data of the user and/or based on the attribute data of the content.
 15. System for displaying content on a television in stand-by mode, comprising means for storing face data of one or more users and for storing preference data associated to the face data, said preference data indicating preferences of the user, means for displaying content, means for indicating that the television is in standby mode, wherein in case that the television is in standby mode activating a front camera for capturing an image of a user, and activating a recommendation device for searching the attribute data of content currently available and for selecting in case that the captured image corresponds to one of the store face data at least one content to be displayed having attribute data (300) matching the associated stored preference data.
 16. A computer program product stored on a computer readable medium which causes a computer to perform the steps of storing face data of one or more users and for storing preference data associated to the face data, said preference data indicating preferences of the user, displaying content, indicating that the television is in standby mode, wherein in case that the television is in standby mode activating a front camera for capturing an image of a user, and activating a recommendation device for searching the attribute data of content currently available and for selecting in case that the captured image corresponds to one of the store face data at least one content to be displayed having attribute data matching the associated stored preference data.
 17. Computer readable storage medium comprising a computer program product according to claim
 16. 